What this bicycle helmet can offer you is ultra lightweight design, so it can bring you little burden to help you better enjoy riding. This helmet can be adjusted freely according to your needs to better ensure riding safety because of its adjustable head circumference. The helmet, which has detachable and soft lining, can allow you to wash easily and wear comfortably. Made of high-quality PC and EPS material, it is impact resistant, safe and durable to use. The length of this product is 27.5cm and width is 15cm. The suitable head circumference is 58-62cm. It is suitable for racing, roads, mountain road, commuting, etc. Item Name: Bicycle Helmet Material: PC,EPS Technology: Integrated Molding,12 Air Vents Features: Breathable, Adjustable, Comfortable Size Details: Suitable Head Circumference: 58cm-62cm/22.83"-24.41" (Approx.) L: 27.5cm/10.83", W: 15cm/5.91"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bicycle Helmet